Cloth-calendering machine



-R. J. WALKER. Cloth Calendaring Machine.

No. 237,421. Patented Feb. 8,1881.

Fig.2; I I I192. I243.

w/v/iz g MPETEZS. PNDTOJJTHOGRAFHER, WASHINGTON. B1 C1 UNITED STATES PATENT OFFICE.

ROBERT J. WALKER, OF PHILADELPHIA, PENNSYLVANIA.

CLOTH-CALENDERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 237,421, dated February 8, 1881. Application filed February 16, 1880.

T 0 all whom it may concern:

Be it known that I, R. J. WALKER, of Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Cloth-Calendering Machines, whichimprovements are fully set forth in the following specification, reference being had to the accompanying drawings, in which Figure 1 is a side view of the machine. Figs. 2 and 3 indicate the relative positions of the rollers and different ways in which the goods may pass through the machine. Fig. 1 is a sectional plan on the line W W, Fig. l. The arrows in Figs. 1', 2, and 3 indicate the direction in which the goods move, and the semidotted l1ne indicates the goods.

The object of my invention is, first, to prevent injury to the goods; and, second, to prevent injury to the paper roller by foreign substances passing through between the metal and the paper rolls.

In calendering-machines for textile fabrics three rollers,B, O, andD, are usually employed, the upper and lower ones, B and D, being usually of metal, and the central one, C, of paper. The goods are usually passed through the machine in such a manner that they are subjected to pressure between the rollers B and G. and also between G and D. The journals of all the rollers are supported by boxes fitted into the housing or frame Z of the machine, as usual.

The textile fabrics are usually received at the finishing establishments in bundles or rolls, and in these bundles and adheriugto the fabric are often found pins, pieces of wire, nails, buttons, and other hard foreign substances; and owing to the impossibility of finding them before they enter the machine they are forced into the circumferential surface of the paper cylinder, and will embed themselves therein, cutting the goods at every revolution of the paper roller before their presence is even suspected.

The objects of my invention are to overcome this difficulty and to prevent the damage to the goods and to the paper roller caused by these foreign articles. I provide for this purpose a straightedge, K, fastened, for the sake of greater rigidity, to the bar A, and ground upon the edge which bears against the paperroll (I very true, so that it will fit accurately against 0. It is held firmly upon the brackets m m, Figs. 1 and 4, by the screws 0 0, or in any other convenient manner, and is capable of adjustment toward 0 by means of adjusting-screws r r, such adjustment being permitted by the slots marked a in Fig. 1, and also indicated by dotted lines in Fig. 4. The straight-edge will promptly remove anything which adheres to the roller 0, or which is even partially embedded therein, and it is immaterial to the successful working of the apparatus in What direction the roller 0 revolves. I prefer, however, to let the roller 0 revolve in such a direction as will cause the pins, nails, &c., after their removal from (J, to lodge upon the top of the straight-edge. The rim 8 prevents the foreign substances from again attaching themselves to the fabric when thelatter passes over the bar A, and this rim may be attached to the straight-edge K or to the bar A. By the tremor of the machine these foreign articles usually find their way to and drop finally off the ends of the straigh t-edge K.

It is not essential that the straight-edge K should be fastened to the bar A, as theformer can be supported directly by the brackets m; but I prefer to unite them in this manner for the purpose of securing greater rigidity.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of the straight-edge K with the metallic rollers B and D, paper roller 0, brackets m m, and housing Z, substantially as and for the purpose specified.

2. The combination of the straight-edge K, bar A, brackets m m, fastening-screws 0 0, adjusting-screws r r, roller 0, and housing Z, substantially as and for the purpose set forth.

3. Thepcombination of the straight-edge K I with the bar A, provided with the rim S, brackets m m, housing Z, and roller 0, substantially as and for the purpose set forth.

It. J. WALKER. Witnesses:

CHAS. E. PANGOAST, THOs. SERNENDINGER. 

